Second the motion. I use Castelle (now Captaris) for a fax server. Great product for network faxing. I bought the two line server, but really only needed one. The one line costs $1,000 for the fax server and software.
You know how much the support is after two months? $695 annually. Only $300 less than the product. You may as well purchase a new server each time and take the 60 days support. These people get you on the support. I love Cisco, but they do the same thing. Cisco puts more knowledge on their website than anyone but Microsoft. But, good luck trying to find anything. It takes support just to find anything on their website.